Wand adaptive_sharpen() function – Python

The adaptive_sharpen() function is an inbuilt function in the Python Wand ImageMagick library which is used to sharpens the image. The intensity is less far from the edges. It is present in class wand.image.

Syntax:

adaptive_sharpen(radius, sigma, channel)

Parameters: This function accepts three parameters as mentioned above and defined below: 

• radius: This parameter is used to specify the value of radius which is the size of the gaussian aperture.
• sigma: This parameter is used to specify the value of sigma which is the standard deviation of the gaussian filter.
• channel: This parameter is used to specify the value of image channel as undefined, ‘red’, ‘gray’, ‘cyan’, ‘green’, ‘magenta’, ‘blue’, ‘yellow’, ‘alpha’, ‘opacity’, ‘black’, ‘index’, ‘composite_channels’, ‘all_channels, ‘sync_channels’, ‘default_channels’.

Return Value: This function returns the Wand ImageMagick object.

Original Image:

Example 1:

Python3

# Import library from Image
from wand.image import Image

# Import the image
with Image(filename ='../geeksforgeeks.png') as image:

    # Clone the image in order to process
    with image.clone() as adaptive_sharpen:
        # Invoke adaptive_sharpen function with radius as 2, sigma as
        # 3 and channel as Green
        adaptive_sharpen.adaptive_sharpen(0, 3, 'Green')
        # Save the image
        adaptive_sharpen.save(filename ='adaptive_sharpen1.jpg')

Output:

Example 2:

Python3

# Import libraries from the wand
from wand.image import Image
from wand.drawing import Drawing
from wand.color import Color

with Drawing() as draw:
    # Set Stroke color the circle to black
    draw.stroke_color = Color('black')
    # Set Width of the circle to 2
    draw.stroke_width = 1
    # Set the fill color to 'White (# FFFFFF)'
    draw.fill_color = Color('white')

    # Invoke Circle function with center at 50, 50 and radius 25
    draw.circle((200, 200), # Center point
                (100, 100)) # Perimeter point
    # Set the font style
    draw.font = '../Helvetica.ttf'
    # Set the font size
    draw.font_size = 30

    with Image(width = 400, height = 400, background = Color('# 45ff33')) as pic:
        # Set the text and its location
        draw.text(int(pic.width / 3), int(pic.height / 2), 'GeeksForGeeks !')
        # Draw the picture
        draw(pic)
        # Invoke adaptive_sharpen function with radius as 8, Sigma as 2
        # Channel as Red
        pic.adaptive_sharpen(8, 2, 'Red')
        # Save the image
        pic.save(filename ='adaptive_sharpen2.jpg')

Output: